John 13:33-35

33Little children, I am with you a little while longer. You will look for me, and just as I told the Jews, so now I tell you, ‘Where I am going, you cannot come.’

34“I give you a new command: Love one another. Just as I have loved you, you are also to love one another.

35By this everyone will know that you are my disciples, if you love one another.”